Can't open a file on my desktop

Here is info from the WinRAR site

I get an error like "CRC failed in file name. The file is corrupt"!
 

File data are corrupt. Archive may be damaged after creation. In this case it is sometimes possible to repair it if it has the recovery record.

It also could have been broken while creating, due to hardware failures (usually caused by an over-clocked CPU or unreliable memory).

In the latter case the recovery record will not help. The only way to detect if the repair will help is to try to apply the repair command to the archive and test the results.

Check, if you have installed the recent version - if not, please download the actual WinRAR/RAR version.  We always improve all functions with every update.

It is very risky to store files on the Windows Desktop. OK to have a shortcut to a file, but never the actual file itself. See if your damaged file is stored in a folder on your hard drive. 

The process of doing this is as follows to repair winrar header

Another might more powerful, but more effective way like

1. Right click on the RAR files and from the list, click on the extract files option.
2. A window will appear showing where a folder can be selected and where it may be saved.
3. Choose the check box which gives the option ‘Open Broken file’.
4. Click OK at the bottom of the window.
5. A warning will pop up but it should be disregarded at this point.